Stainless Steel Coil
✓ Superior Corrosion Resistance: 316L resists 5% NaCl brine at 60°C (140°F) and 10% H₂SO₄ at 50°C (122°F) with <0.1mm/year corrosion rate.
✓ High-Speed Formability: Optimized for stamping, rolling, and welding with ±0.05mm thickness tolerance and Ra ≤0.5μm surface finish.
✓ Hygienic & Aesthetic Surfaces: 2B, BA, or No. 4 finishes meet FDA/ISO 22000 standards for food, medical, and architectural use.
✓ Thermal Stability: Retains strength from -50°C (-58°F) to 800°C (1,472°F) (Grade 310S).
Stainless Steel Coil (Grades 304, 316L, 430, etc.)
Engineered for industries requiring high-speed forming, corrosion resistance, and seamless fabrication, our stainless steel coils deliver precision performance in continuous production lines. Available in Grades 304, 316L, 430, and specialty alloys, these coils excel in environments exposed to moisture, chemicals, and extreme temperatures. Certified to ASTM A240, EN 10088, and ISO 9001, they outperform carbon steel with 10x longer lifespan in corrosive settings and offer 100% recyclability for sustainable manufacturing.
| Parameter Category | 304/304L | 316/316L | 430 |
|---|---|---|---|
| Material Standard | ASTM A240, EN 1.4301/1.4307 | ASTM A240, EN 1.4401/1.4404 | ASTM A240, EN 1.4016 |
| Chemical Composition (%) | Cr: 18–20, Ni: 8–10.5, C: ≤0.07 (304) / ≤0.03 (304L), Mn: ≤2.0, Si: ≤1.0, Fe: Balance | Cr: 16–18, Ni: 10–14, Mo: 2–3, C: ≤0.07 (316) / ≤0.03 (316L), Mn: ≤2.0, Si: ≤1.0, Fe: Balance | Cr: 16–18, C: ≤0.12, Mn: ≤1.0, Si: ≤1.0, Fe: Balance |
| Tensile Strength (MPa) | 515–720 | 515–690 | 450–600 |
| Yield Strength (MPa) | ≥205 | ≥205 | ≥240 |
| Elongation (%) | ≥40 (in 50mm) | ≥40 (in 50mm) | ≥20 (in 50mm) |
| Hardness (Rockwell) | B70–90 | B70–90 | B75–95 |
| Density (g/cm³) | 8.0 | 8.0 | 7.7 |
| Melting Point (°C) | 1400–1450 | 1375–1400 | 1425–1510 |
| Thermal Conductivity (W/m·K) | 16.2 (20°C) | 15.9 (20°C) | 26.0 (20°C) |
| Thermal Expansion (10⁻⁶/°C) | 17.2 (20–100°C) | 16.0 (20–100°C) | 10.4 (20–100°C) |
| Electrical Resistivity (Ω·m) | 0.72 × 10⁻⁶ | 0.74 × 10⁻⁶ | 0.60 × 10⁻⁶ |
| Corrosion Resistance | Good resistance to oxidizing acids, atmospheric conditions, and organic chemicals. Susceptible to chlorides. | Superior resistance to chlorides, acids, and marine environments due to Mo. | Moderate resistance to nitric acid and organic acids. Poor resistance to chlorides. |
| Heat Treatment | Annealing: 1010–1120°C (rapid cooling). | Annealing: 1010–1120°C (rapid cooling). | Annealing: 790–850°C (slow cooling). |
| Surface Finishes | 2B (Cold-rolled, bright annealed), BA (Bright Annealed), No. 4 (Brushed), HL (Hairline). | Same as 304/304L. | 2D (Dull finish), BA, No. 3 (Intermediate polish). |
| Coil Dimensions | – Thickness: 0.3–6.0mm – Width: 50–2000mm – Inner Diameter (ID): 300–610mm – Outer Diameter (OD): ≤2500mm. | Same as 304/304L. | – Thickness: 0.3–5.0mm – Width: 50–1500mm – ID: 300–610mm – OD: ≤2000mm. |
| Key Applications | Food processing, automotive trim, chemical tanks, architectural cladding. | Marine equipment, pharmaceuticals, coastal architecture. | Automotive trim, appliances, decorative trim, nitric acid tanks. |
Stainless Steel Coil (Grades 304, 316L, 430, etc.) Applications
| Industry | Critical Use Cases | Stainless Steel Coil Advantage |
|---|---|---|
| Food & Beverage | Conveyor belts, brewery tank cladding | Hygienic BA finish resists bacterial growth and CIP cleaning. |
| Automotive | Exhaust systems, fuel cell bipolar plates | Grade 409/439 resists 900°C (1,652°F) exhaust heat. |
| Construction | Architectural façades, elevator interiors | Hairline finish maintains aesthetics in coastal climates. |
| Chemical Processing | Acid storage tanks, heat exchanger coils | 316L withstands 15% HCl at 40°C (104°F). |
Stainless Steel Coil Product Packaging
Our Stainless Steel Coils (Grades 304/316L, ASTM A240/ASME SA-240 compliant) are engineered for critical applications in automotive, food processing, and architectural cladding. Combining superior corrosion resistance, hygienic surfaces, and high formability, these coils are protected by industry-leading packaging and logistics protocols compliant with ASTM A480, ISO 9444, and MIL-STD-129 standards to ensure flawless surface quality and dimensional stability during global transit.
Anti-rust packaging
VCI gas phase anti-rust film + desiccant (12 months moisture-proof for sea transportation)
Reinforcement method
Steel strapping + wooden pallet (load-bearing ≤ 5 tons)
Surface protection
Polyethylene film layered isolation (anti-scratch)
Customization options
IPPC fumigation wooden box (compliant with ISPM15 standard)
Stainless Steel Coil Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
Why Choose Us?
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specifications and customization
Unlimited size, support non-standard cutting. Multiple surface treatments.
Professional capabilities
25 Years Of Focus On Metal Materials Science
Certification & Quality Assurance
Products comply with international standards such as ASTM, EN, JIS, etc., and are 100% tested from raw materials to finished products
Fast delivery & global supply
Global urgent orders are delivered within 15 days. One-stop service
FAQ
Q1: How does 316L differ from 304 stainless steel coils?
A: 316L contains 2–3% molybdenum for superior chloride resistance (ideal for marine/chemical use), while 304 is cost-effective for general corrosion applications.
Q2: What welding methods ensure contamination-free joints?
A: Use TIG (GTAW) with ER316L filler rod under argon shielding for 316L; MIG (GMAW) with ER308L filler for 304.
Q3: Are coils certified for pharmaceutical manufacturing?
Full compliance includes:
- FDA 21 CFR 177.2600
- EU 10/2011
- ISO 13485 (Medical Devices)
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 1 ton MOQ.
Custom sizes/tempers: 5 tons MOQ (lead time 35 days).
Q5: How to verify material authenticity?
Scan NFC tags or input heat numbers via our StainlessTrace® portal to access:
- XRF alloy verification reports
- EN 10204 3.1/3.2 certificates
- Third-party SGS/BV test data
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